<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
             label-width="68px">
      <el-form-item label="地区编码" prop="territoryCode">
        <el-select v-model="queryParams.territoryCode" placeholder="请选择地区编码" clearable @change="handleQuery">
          <el-option
            v-for="item in territoryCodeOptions"
            :key="item.territoryCode"
            :label="item.territoryName"
            :value="item.territoryCode">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="地区级别" prop="territoryLevel">
        <el-select v-model="queryParams.territoryLevel" placeholder="请选择地区级别" clearable @change="handleQuery">
          <el-option label="省级" value="2"/>
          <el-option label="市级" value="3"/>
        </el-select>
      </el-form-item>
      <el-form-item label="地区名称" prop="territoryName">
        <el-input
          v-model="queryParams.territoryName"
          placeholder="请输入地区名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item label="父级地区ID" prop="parentId">
        <el-select v-model="queryParams.parentId" placeholder="请选择父级地区" clearable @change="handleQuery">
          <el-option
            v-for="item in parentTerritoryOptions"
            :key="item.id"
            :label="item.territoryName"
            :value="item.id">
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['cms:territory:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="info"
          plain
          icon="el-icon-sort"
          size="mini"
          @click="toggleExpandAll"
        >展开/折叠
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
      v-if="refreshTable"
      v-loading="loading"
      :data="territoryList"
      row-key="territoryCode"
      :default-expand-all="isExpandAll"
      :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
    >
      <el-table-column label="地区编码" prop="territoryCode"/>
      <el-table-column label="地区级别" align="center" prop="territoryLevel">
        <template slot-scope="scope">
          <span v-if="scope.row.territoryLevel === 2">省级</span>
          <span v-else>{{ scope.row.territoryLevel }}</span>
        </template>
      </el-table-column>
      <el-table-column label="地区名称" align="center" prop="territoryName"/>
      <el-table-column label="地区拼音" align="center" prop="territoryPinyin"/>
      <el-table-column label="排序号" align="center" prop="territorySort"/>
      <el-table-column label="父级地区ID" align="center" prop="parentId"/>
      <el-table-column label="经度" align="center" prop="xwgs84"/>
      <el-table-column label="纬度" align="center" prop="ywgs84"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['cms:territory:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-plus"
            @click="handleAdd(scope.row)"
            v-hasPermi="['cms:territory:add']"
          >新增
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['cms:territory:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改地区层级对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="地区编码" prop="territoryCode">
          <el-input v-model="form.territoryCode" placeholder="请输入地区编码"/>
        </el-form-item>
        <el-form-item label="地区级别" prop="territoryLevel">
          <el-select v-model="form.territoryLevel" placeholder="请选择地区级别">
            <el-option label="省级" value="2"/>
          </el-select>
        </el-form-item>
        <el-form-item label="地区名称" prop="territoryName">
          <el-input v-model="form.territoryName" placeholder="请输入地区名称"/>
        </el-form-item>
        <el-form-item label="地区拼音" prop="territoryPinyin">
          <el-input v-model="form.territoryPinyin" placeholder="请输入地区拼音"/>
        </el-form-item>
        <el-form-item label="排序号" prop="territorySort">
          <el-input v-model="form.territorySort" placeholder="请输入排序号"/>
        </el-form-item>
        <el-form-item label="父级地区ID" prop="parentId">
          <treeselect v-model="form.parentId" :options="territoryOptions"
                      :normalizer="normalizer" placeholder="请选择父级地区ID"/>
        </el-form-item>
        <el-form-item label="经度" prop="xwgs84">
          <el-input v-model="form.xwgs84" placeholder="请输入经度"/>
        </el-form-item>
        <el-form-item label="纬度" prop="ywgs84">
          <el-input v-model="form.ywgs84" placeholder="请输入纬度"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {getTerritory, listTerritory} from "@/api/cms/territory"
import Treeselect from "@riophae/vue-treeselect"
import "@riophae/vue-treeselect/dist/vue-treeselect.css"

export default {
  name: "Territory",
  components: {
    Treeselect
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 地区层级表格数据
      territoryList: [],
      // 地区编码选项
      territoryCodeOptions: [],
      // 父级地区选项
      parentTerritoryOptions: [],
      // 地区层级树选项
      territoryOptions: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        territoryCode: null,
        territoryLevel: null,
        territoryName: null,
        territoryPinyin: null,
        territorySort: null,
        parentId: null,
        xwgs84: null,
        ywgs84: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        territoryCode: [
          {
            required: true, message: "地区编码不能为空", trigger: "blur"
          }
        ],
        territoryLevel: [
          {
            required: true, message: "地区级别不能为空", trigger: "blur"
          }
        ],
        territoryName: [
          {
            required: true, message: "地区名称不能为空", trigger: "blur"
          }
        ],
        parentId: [
          {
            required: true, message: "父级地区ID不能为空", trigger: "blur"
          }
        ],
      }
    }
  },
  created() {
    this.getList()
    this.getTerritoryCodeOptions()
  },
  methods: {
    /** 查询地区层级列表 */
    getList() {
      this.loading = true
      listTerritory(this.queryParams).then(response => {
        this.territoryList = this.handleTree(response.data, "territoryCode", "parentId")
        this.loading = false
      })
    },
    /** 获取地区编码选项 */
    getTerritoryCodeOptions() {
      listTerritory().then(response => {
        // 提取唯一的地区编码和名称
        const codes = []
        const codeMap = {}
        response.data.forEach(item => {
          if (!codeMap[item.territoryCode]) {
            codeMap[item.territoryCode] = true
            codes.push({
              territoryCode: item.territoryCode,
              territoryName: item.territoryName
            })
          }
        })
        this.territoryCodeOptions = codes

        // 提取父级地区选项(id和名称)
        const parentOptions = []
        const parentMap = {}
        response.data.forEach(item => {
          if (!parentMap[item.id]) {
            parentMap[item.id] = true
            parentOptions.push({
              id: item.id,
              territoryName: item.territoryName
            })
          }
        })
        this.parentTerritoryOptions = parentOptions
      })
    },
    /** 转换地区层级数据结构 */
    normalizer(node) {
      if (node.children && !node.children.length) {
        delete node.children
      }
      return {
        id: node.territoryCode,
        label: node.territoryName,
        children: node.children
      }
    },
    /** 查询地区层级下拉树结构 */
    getTreeselect() {
      listTerritory().then(response => {
        this.territoryOptions = []
        const data = {territoryCode: 0, territoryName: '顶级节点', children: []}
        data.children = this.handleTree(response.data, "territoryCode", "parentId")
        this.territoryOptions.push(data)
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        territoryCode: null,
        territoryLevel: null,
        territoryName: null,
        territoryPinyin: null,
        territorySort: null,
        parentId: null,
        xwgs84: null,
        ywgs84: null,
        createTime: null,
        updateTime: null
      }
      this.resetForm("form")
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm")
      this.handleQuery()
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      this.getTreeselect()
      if (row != null && row.territoryCode) {
        this.form.parentId = row.territoryCode
      } else {
        this.form.parentId = 0
      }
      this.open = true
      this.title = "添加地区层级"
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false
      this.isExpandAll = !this.isExpandAll
      this.$nextTick(() => {
        this.refreshTable = true
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      this.getTreeselect()
      if (row != null) {
        this.form.parentId = row.parentId
      }
      getTerritory(row.id).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改地区层级"
      })
    },
    /** 提交按钮 */
    submitForm: function () {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.menuId != undefined) {
            updateMenu(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addMenu(this.form).then(response => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除名称为"' + row.menuName + '"的数据项？').then(function () {
        return delMenu(row.menuId)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {
      })
    }
  }
}
</script>
